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CVE-2026-15645— Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'nav' Shortcode Attribute

Quick assessment

Affected
codesupplyco Powerkit – Supercharge your WordPress Site
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress Powerkit是WordPress基金会开源的一款内容管理增强插件。 WordPress Powerkit 3.1.0及之前版本存在跨站脚本漏洞，该漏洞源于通过'nav'短代码属性输入清理和输出转义不足，可能导致存储型跨站脚本攻击，使得具有投稿者级别及以上访问权限的已认证攻击者能在页面中注入任意Web脚本，当用户访问被注入页面时执行。

CVSS 6.4 · Medium EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
codesupplyco Powerkit – Supercharge your WordPress Site ≤ 3.1.0 affected
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I. Basic Information for CVE-2026-15645

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'nav' Shortcode Attribute
Source: CVE Program / CVE List V5
Vulnerability Description
The Powerkit – Supercharge your WordPress Site plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'nav' Shortcode Attribute in all versions up to, and including, 3.1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Powerkit 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Powerkit是WordPress基金会开源的一款内容管理增强插件。 WordPress Powerkit 3.1.0及之前版本存在跨站脚本漏洞，该漏洞源于通过'nav'短代码属性输入清理和输出转义不足，可能导致存储型跨站脚本攻击，使得具有投稿者级别及以上访问权限的已认证攻击者能在页面中注入任意Web脚本，当用户访问被注入页面时执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
codesupplyco Powerkit – Supercharge your WordPress Site 0 ~ 3.1.0 -

II. Public POCs for CVE-2026-15645

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III. Intelligence Information for CVE-2026-15645

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Patches & Fixes for CVE-2026-15645 (4)

News Coverage for CVE-2026-15645 (1)

Vendor Pages for CVE-2026-15645 (1)

Same Patch Batch · codesupplyco · 2026-08-01 · 3 CVEs total

CVE-2026-15649 6.4 MEDIUM Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode
CVE-2026-15644 6.4 MEDIUM Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'style' S

IV. Related Vulnerabilities

Same product: Powerkit – Supercharge your WordPress Site
Same vendor: codesupplyco
Same weakness: CWE-79

V. Comments for CVE-2026-15645

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